Comment 8 for bug 432076

I also tried to login to ubuntu channel there, and after 20 minutes, I got a tcl error message, unable to allocate memory.

I think the problem is that there are about 1300 people in the channel, and coccinella gets a presence information for every participant and is trying to handle those and to keep them in memory.

try a different channels, with fewer people, e.g. about 100. it takes a while after coccinella received all presence infos, but then coccinella handles that well.

IIRC, in the presence chapter or in the muc chapter in XMPP, the definitive guide, there are some XEP's mentioned, on how to tell the server to only send the presence infos for "important people" in a channel to the client.
Need to check which of them are these, and whether coccinella supports those, I guess not (yet)

I think the exception you got was a follow-up error on the initial problem.